NSA chief says Sony attack traced to N.Korea after software analysis

Feb 20, 2015

OTTAWA (Reuters) - The U.S. National Security Agency (NSA) identified North Korea as the source of the recent cyberattack on Sony Pictures Entertainment (6758.T) after analyzing the software used in the intrusion, NSA Director Admiral Michael Rogers said on Thursday.Speaking to a Canadian security conference, Rogers explained that the discovery was part of the agency's efforts to develop software to counter cyberattacks."We ultimately ended up generating the signatures to recognize the activity ... used against Sony," Rogers said. "From the time the malware left North Korea ...